1001400051 has 8 divisors (see below), whose sum is σ = 1335355840. Its totient is φ = 667522152.

The previous prime is 1001400047. The next prime is 1001400077. The reversal of 1001400051 is 1500041001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001400051 - 2² = 1001400047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001400041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25116 + ... + 51318.

It is an arithmetic number, because the mean of its divisors is an integer number (166919480).

Almost surely, 2^1001400051 is an apocalyptic number.

1001400051 is a deficient number, since it is larger than the sum of its proper divisors (333955789).

1001400051 is a wasteful number, since it uses less digits than its factorization.

1001400051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38945.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1001400051 is about 31644.9056089602. The cubic root of 1001400051 is about 1000.4664660423.

Adding to 1001400051 its reverse (1500041001), we get a palindrome (2501441052).

The spelling of 1001400051 in words is "one billion, one million, four hundred thousand, fifty-one".